Kyungsoo appears as the typical lucky guy: he's beautiful and belongs to one of the richest families in Manhattan. His muffled world, however, hides a secret. The Do are a powerful werewolf clan, integrated for decades with the society in New York.

At the rise of the next full moon, he will have to face the wolf from the opponent pack, in a fight for the control of the territory, where only one will survive.

The story is inspired by Romeo and Juliet.